docker+scripts: XFTP servers installation, update docs, install scripts (#750)

* docker: major overhaul with xftp support

* github: update docker actions

* install: add installation scripts

* readme: update readme to reflect latest changes

scripts/docker/entrypoint-smp-server

@@ -5,21 +5,28 @@ logd="/var/opt/simplex/"
 # Check if server has been initialized
 if [ ! -f "$confd/smp-server.ini" ]; then
   # If not, determine ip or domain
-  case $addr in
-    '') printf "Please specify \$addr environment variable.\n"; exit 1 ;;
-    *[a-zA-Z]*) set -- -n $addr ;;
-    *) set -- --ip $addr ;;
+  case "$ADDR" in
+    '') printf "Please specify \$ADDR environment variable.\n"; exit 1 ;;
+    *[a-zA-Z]*)
+      case "$ADDR" in
+        *:*) set -- --ip "$ADDR" ;;
+        *) set -- -n "$ADDR" ;;
+      esac
+      ;;
+    *) set -- --ip "$ADDR" ;;
   esac
 
-  case $pass in
+  # Optionally, set password
+  case "$PASS" in
     '') set -- "$@" --no-password ;;
-    *) set -- "$@" --password $pass ;;
+    *) set -- "$@" --password "$PASS" ;;
   esac
 
+  # And init certificates and configs
   smp-server init -y -l "$@"
 fi
 
-# backup store log
+# Backup store log just in case
 [ -f "$logd/smp-server-store.log" ] && cp "$logd"/smp-server-store.log "$logd"/smp-server-store.log."$(date +'%FT%T')"
 
 # Finally, run smp-sever. Notice that "exec" here is important:

scripts/docker/entrypoint-xftp-server

@@ -0,0 +1,35 @@
+#!/usr/bin/env sh
+confd="/etc/opt/simplex-xftp"
+logd="/var/opt/simplex-xftp"
+
+# Check if server has been initialized
+if [ ! -f "$confd/file-server.ini" ]; then
+  # If not, determine ip or domain
+  case "$ADDR" in
+    '') printf "Please specify \$ADDR environment variable.\n"; exit 1 ;;
+    *[a-zA-Z]*)
+      case "$ADDR" in
+        *:*) set -- --ip "$ADDR" ;;
+        *) set -- -n "$ADDR" ;;
+      esac
+      ;;
+    *) set -- --ip "$ADDR" ;;
+  esac
+
+  # Set quota
+  case "$QUOTA" in
+    '') printf "Please specify \$QUOTA environment variable.\n"; exit 1 ;;
+    *) set -- "$@" --quota "$QUOTA" ;;
+  esac
+
+  # Init the certificates and configs
+  xftp-server init -l -p /srv/xftp "$@"
+fi
+
+# Backup store log just in case
+[ -f "$logd/file-server-store.log" ] && cp "$logd"/file-server-store.log "$logd"/file-server-store.log."$(date +'%FT%T')"
+
+# Finally, run xftp-sever. Notice that "exec" here is important:
+# smp-server replaces our helper script, so that it can catch INT signal
+exec xftp-server start +RTS -N -RTS
+